Exterior tonneau cover



FIG. 1 is a perspective view of an exterior tonneau cover design according to the present invention;

FIG. 2 is a top plan view of the tonneau cover shown in FIG. 1;

FIG. 3 is front plan view of the tonneau cover shown in FIG. 1;

FIG. 4 is a rear plan view of the tonneau cover shown in FIG. 1;

FIG. 5 is a bottom plan view of the tonneau cover shown in FIG. 1;

FIG. 6 is a side plan view of the tonneau cover shown in FIG. 1; and,

FIG. 7 is a side plan view of the tonneau cover shown in FIG. 1 opposite the side plan view of FIG. 6. 

The ornamental design for an exterior tonneau cover, as shown and described. 